Hi,I am using STM32H747. I have successfully write&read micro sd card over SDMMC2 peripheral while debugging. But after debugging, when I power cycle or reset the board, I am not able to use sd card. I see FatFS open file failing. The board is arduin...
Hi , I made a STM32F405VGT6 board with SD card interface. The SD code is generated using STM32CUBEMX and FatFs middleware. The SD file write is not stable, it return error sometimes after calling f_write(). However, if I run the same code in uVis...
Hi,we have an image, install on few SD cards. Most of them boots just fine, but few of them get stuck at "Saving Environment to MMC...".I tried to reduce the SD clock to 25, 12.5MHz but it doesn't help. Does anyone know where the point to investigat...
hi all,we have an application that requires powering an eMMC down and then back up while the MCU keeps running. BackgroundWe're successfully using the eMMC connected to the SDMMC1 peripheral running on a 25MHz 8-bit bus, with ClockPowerSave ENABLED. ...
Hello,I am relatively new here and would like to try to design a STM32H747AI board with LiPo battery power supply for wearable devices with features like OLED microdisplay, WiFi+Bluetooth and GNSS module. Since I would like to run a GUI on it with sm...
Hello,In my application, I want to implement the SDcard write funcitonality using SDIO+DMA in STM32f103RGT6 processor. I could able to perform SDcard read functionality but the write does not work. Does anybody have any samply code or reference would...
I was trying to interface a microSD card (32GB) with STM32F407 through SDIO. Tried 1-bit and 4-bit modes. But it always gets me back FR_NOT_READY. and the program always stuck here: FATFS configuration: SDIO configuration: Clock:Where I'm doing any m...
Hi everyone,I am developing an application using the STM32L476RG MCU with FreeRTOS v2, FATFS and an SD card. I am storing sensor data in a .bin file onto the SD card and I want to enable the USB Mass Storage functionality to get .bin files onto my PC...
Hello, I have a really strange problem with our STMF407 custom board that connects to a full-size SD Card socket using SDIO. The MCU uses HSE at 8MHz and SDIO configuration as a 4-bit wide bus and div factor = 0. All the other values are SDIO de...
Hi everyone. I'm trying to build a data logger using a SD Card using SDMMC. I'm using the STM32-H747i DISCO, STM32 Cube IDE and following the example STM32 - Creating a File System on a SD card from STMicroelectronic youtube channel.The program passe...
